Hello World Server (Stdio)

Location: crates/rust-mcp-sdk/examples/hello-world-mcp-server-stdio.rs

This example creates a stdio MCP server with a say_hello tool using ServerHandler. It demonstrates the minimal code needed for a working MCP server.

cargo run --example hello-world-mcp-server-stdio -p rust-mcp-sdk

Connect with MCP Inspector:

npx @modelcontextprotocol/inspector node ./target/debug/examples/hello-world-mcp-server-stdio